- #Hhr mass air flow sensor problems how to
- #Hhr mass air flow sensor problems upgrade
- #Hhr mass air flow sensor problems code
#Hhr mass air flow sensor problems how to
Now, in testing the MAF sensor, you won't be looking for a specific Hertz (Hz) number at a specific RPM but for crazy fluctuations in the signal that don't correspond to the amount of air entering the engine or NO SIGNAL AT ALL.How do I clean the mass air flow sensor from a Chevrolet Captiva?Īfter examining the operation and concerns that the flowmeter can trigger, we will look at how to fix these problems by showing to you how to clean the mass air flow sensor of your Chevrolet Captiva. The important thing to know, is that the more air the engine breathes (or the higher the RPM) the higher the MAF Hertz signal becomes, and of course the less air the engine breathes, the lower the Hertz signal (that your digital multimeter will record).
![hhr mass air flow sensor problems hhr mass air flow sensor problems](https://i.ebayimg.com/images/g/0GYAAOSwqUdcsYOF/s-l400.jpg)
This Hertz Frequency signal is sent directly to the PCM. To get into more specifics: The MAF sensor informs the amount of air flow by converting the measurement of air into a Hertz Frequency signal that increases with more air flow (as you accelerate the engine) or decreases as the engine breathes less air.
![hhr mass air flow sensor problems hhr mass air flow sensor problems](https://i.ebayimg.com/images/g/rO0AAOSw4tJeFJAc/s-l300.jpg)
The PCM ( Powertrain Control Module = Fuel Injection Computer) then uses this measurement of air flow to inject the correct amount of fuel. The MAF sensor is tasked with measuring the amount of air entering the engine at any given RPM. If it doesn't, they find you the right one. Not sure if the above MAF sensor fit your particular vehicle? Don't worry, once you get to the site, they'll make sure it fits. The following links will help you comparison shop for the two most trusted brands in original equipment GM MAF sensors (Delphi and AC-Delco):
#Hhr mass air flow sensor problems upgrade
#Hhr mass air flow sensor problems code
It's rare for the Mass Air Flow (MAF) Sensor to go bad and not leave a diagnostic trouble code but sometimes you'll get the MAF Trouble Code and the MAF is good.
![hhr mass air flow sensor problems hhr mass air flow sensor problems](https://i.ebayimg.com/images/g/~tIAAOSwM0VeFJMH/s-l300.jpg)
When the MAF sensor goes bad, you'll get the Check Engine Light to shine nice and bright on your instrument cluster. You can find this tutorial in Spanish here: Cómo Probar El Sensor MAF (GM 3.5L) (at: ).